Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Cookie Monster on 12 November 2009, 18:05:47
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Hi all.. Anyone got any views on where you should buy your fuel from , and dont say garage :) ?
In these times of things being tight the supermarkets seem tempting and have to admit i do use them sometimes mainly for the so called special offers but, i hear that they dont put the additives to the fuel that the oil companies do... any words of wisdom or experience anyone ? :D
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I've only ever used Tesco 95 octane fuel in every car ive had, including my 3 omegas, and never experienced any problem while using it :y
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Its quite clear that the better fuels do keep the engine internals nice and clean (seen this first hand)......but a regular dose of good fuel treatment (i.e. Forte) will give similar results.
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Its quite clear that the better fuels do keep the engine internals nice and clean (seen this first hand)......but a regular dose of good fuel treatment (i.e. Forte) will give similar results.
Well reminded, i was gonna do a comparrison on heads run with good petrol and forte cleaner against normal / dirtier heads...
anyone got any good head internals pics showing a dirty head?
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clean pics now in test zone...just need some dirty ones to join it :y
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same as that. Cars bikes vans. Never noticed any odds between shell optimax (or v power or whatever they are calling it now) and cheapo spasda unleaded.
Only time it made any odds was when a local bike tuner recommended to use the highest octane fuel, "where available" on an old race bike i had. Used unleaded once when we couldnt fine optimax and made no noticeable difference.
I do beleive its been proven to make no odds in tests for the road.
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Have to confess I filled up from empty (7 miles range on MID) with BP Ultimate last week before setting off to Liverpool from Herts with the thought that it might do the fuel system some good. Although I had only used half a tank before returning I filled up again with Ultimate in Preston so I didn't have to stop on the way back. Total 458 miles, achieved 31.8mpg including town and sitting in roadworks.
(2.2CD Auto). Not bad, even though approx £4 more per tankfull. I'm convinced the engine is idling smoother. Any views? :)
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Have to confess I filled up from empty (7 miles range on MID) with BP Ultimate last week before setting off to Liverpool from Herts with the thought that it might do the fuel system some good. Although I had only used half a tank before returning I filled up again with Ultimate in Preston so I didn't have to stop on the way back. Total 458 miles, achieved 31.8mpg including town and sitting in roadworks.
(2.2CD Auto). Not bad, even though approx £4 more per tankfull. I'm convinced the engine is idling smoother. Any views? :)
It would have been a shorter journey if you didnt go via Preston :)
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Sorry but I do about 2500 miles a month and the 'super' fuels 'DO' make a difference, yes they cost more but having used the 'Shell' version it gives better mpg and the engine just runs, better, smoother, whatever.
regards
Richard A
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like i said earlier ive been using the Tesco 95 octane fuel in my cars , but ive been thinking lately about trying the 99 octane one, is it ok to mix the 2 types? as i generally dont let me "range" drop below 100 miles when it come to refilling it, so id probably still have a gallon or two of the 95 in the tank :question
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like i said earlier ive been using the Tesco 95 octane fuel in my cars , but ive been thinking lately about trying the 99 octane one, is it ok to mix the 2 types? as i generally dont let me "range" drop below 100 miles when it come to refilling it, so id probably still have a gallon or two of the 95 in the tank :question
yes.....you will be running somewhere in between the 2, getting nearer the better one with each top up.
all petrol mixes fine
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Have to confess I filled up from empty (7 miles range on MID) with BP Ultimate last week before setting off to Liverpool from Herts with the thought that it might do the fuel system some good. Although I had only used half a tank before returning I filled up again with Ultimate in Preston so I didn't have to stop on the way back. Total 458 miles, achieved 31.8mpg including town and sitting in roadworks.
(2.2CD Auto). Not bad, even though approx £4 more per tankfull. I'm convinced the engine is idling smoother. Any views? :)
It would have been a shorter journey if you didnt go via Preston :)
;D Damn sat nav! Sorry, forgot to mention I had to go on from Liverpool to Preston on the last day... ::)
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Sorry but I do about 2500 miles a month and the 'super' fuels 'DO' make a difference, yes they cost more but having used the 'Shell' version it gives better mpg and the engine just runs, better, smoother, whatever.
regards
Richard A
That's how it felt to me so it's good to hear I'm not the only one. :)
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Have to confess I filled up from empty (7 miles range on MID) with BP Ultimate last week before setting off to Liverpool from Herts with the thought that it might do the fuel system some good. Although I had only used half a tank before returning I filled up again with Ultimate in Preston so I didn't have to stop on the way back. Total 458 miles, achieved 31.8mpg including town and sitting in roadworks.
(2.2CD Auto). Not bad, even though approx £4 more per tankfull. I'm convinced the engine is idling smoother. Any views? :)
I found the same! I think its more noticeable in the 4pots due to the nature of the engines, the smooth V6s seem the same on both fuels at idle.
I find BP Ultimate also gives a little more poke above 4.5krpm, must treat mine to a tank full, not had some in ages.
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I stay not to far from a refinery (delivered many pizzas there) so have seen all the major supermarket lorrys and independant ones getting filled at the same place bp grangemouth as far as i'm led to beleive theres only 95 unleaded 98 super/optimax unleaded and diesel Oh and gas oil ;)
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I stay not to far from a refinery (delivered many pizzas there) so have seen all the major supermarket lorrys and independant ones getting filled at the same place bp grangemouth as far as i'm led to beleive theres only 95 unleaded 98 super/optimax unleaded and diesel Oh and gas oil ;)
The base fuel yes, its the additives that are added to the tankers that makes the difference.
Here is a typical picture of a 2.6 head after 100K miles:
(http://i23.photobucket.com/albums/b394/Marks_DTM_Calib/Mick_Dundee/IMG_0199.jpg)
and the valves (note the state of the inlet vales in particular!)
(http://i23.photobucket.com/albums/b394/Marks_DTM_Calib/Mick_Dundee/IMG_0213.jpg)
Here is a photo of a head off a higher mileage 3.0 which had been run on the better fuels with occasional fuel treatment added.
(http://images.omegaowners.com/images/faq/clean_v_dirty_30_head/IMG_0856s.jpg)
The photos speak for themselves.
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cheers, ill add that photo to mine and move to faq :y
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all pics now at http://www.omegaowners.com/forum/YaBB.pl?num=1258052938/0#0
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I stay not to far from a refinery (delivered many pizzas there) so have seen all the major supermarket lorrys and independant ones getting filled at the same place bp grangemouth as far as i'm led to beleive theres only 95 unleaded 98 super/optimax unleaded and diesel Oh and gas oil ;)
The base fuel yes, its the additives that are added to the tankers that makes the difference.
Here is a typical picture of a 2.6 head after 100K miles:
(http://i23.photobucket.com/albums/b394/Marks_DTM_Calib/Mick_Dundee/IMG_0199.jpg)
and the valves (note the state of the inlet vales in particular!)
(http://i23.photobucket.com/albums/b394/Marks_DTM_Calib/Mick_Dundee/IMG_0213.jpg)
Here is a photo of a head off a higher mileage 3.0 which had been run on the better fuels with occasional fuel treatment added.
(http://images.omegaowners.com/images/faq/clean_v_dirty_30_head/IMG_0856s.jpg)
The photos speak for themselves.
I would check with Mike on the fuel used - that gunge is from oil burning
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Now that is a clean head !.
I've run Tesco 95 in the Omega for the last 60k miles (just under 2 years of driving) and I have tried the higher octane BP ultimate a few times. Didnt really notice any difference in either fuel consumption, smoothness of running or extra power. But then I am doing 90% of my driving on motorways and DC's
When testing I ran 3 tanks through each time to ensure I had pure 97 rather than 95. Being normally aspirated any benefit from the higher octane is going to be minimal in terms of power gains.
I had heard that the BP Ultimate kept the heads clean and I do run every third tank on BP through my other cars to keep them clean (ish) but with the mileage I do in the miggy its not cost effective as I dont see any MPG or obvious power increase.
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I live on the Suffolk coast and from my window I can see about 20 large oil tankers which have been sitting there for some weeks now.
They are waiting for the price of oil to increase, fair do's, but what is happening to the oil they are storing, what is it absorbing?
If you buy Shell oil it comes straight from the refinery, I guess BP and Esso are the same. If you buy from a Supermarket you could regret it.
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I only use Texaco 95 fuel in my Omega - used it in all my cars for the past four years with no problems. Occasionally put 97 in as it seems a bit smoother. Big bonus is that the local Texaco garage is actually cheaper than the nearest supermarket station, as they are more than two miles from each other, so the Tesco's does not feel a need to compete... currently, the Texaco garage is 2p a litre cheaper! :y